DC - Direct current motor, so it's not SDM, thought based on the
power-supply in the camera I'd think they were both powered by direct
current, but then I'm not a Japanese marketer.
On 3/15/2012 3:34 AM, John Francis wrote:
On Wed, Mar 14, 2012 at 04:03:45PM -0400, Daniel J. Matyola wrote:
Does anyone have any experience with, or opinions on, the following lens?
smc PENTAX-DA 1:3.5-5.6 18-135mm ED AL [IF] DC WR
And just what do all those letters at the end mean?
ED - Extra Dispersion Some elements made of high-refractive-index glass
AL - Aspherical eLements Some of those pieces of glass have shapes
that are somewhat harder to manufacture.
IF - Internal Focus The front element doesn't rotate when focussing
(which is very handy if you're using a polariser)
DC - ?? Don't Care? Destroys Cameras?
WR - Water Resistant
--
Don't lose heart! They might want to cut it out, and they'll want to avoid a
lengthily search.
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